<!-- 编辑弹窗 -->
<template>
  <ele-modal width="720px"
             :visible="visible"
             :close-on-click-modal="true"
             custom-class="ele-dialog-form"
             :title="isUpdate ? '修改菜单' : '添加菜单'"
             @update:visible="updateVisible">
    <el-form ref="form"
             :model="form"
             :rules="rules"
             label-width="92px">
      <el-row :gutter="15">
        <el-col v-bind="styleResponsive ? { sm: 12 } : { span: 12 }">
          <el-form-item label="上级菜单:">
            <ele-tree-select clearable
                             v-model="form.parentId"
                             :data="menuList"
                             label-key="title"
                             value-key="menuId"
                             default-expand-all
                             placeholder="请选择上级菜单" />
          </el-form-item>
          <el-form-item label="菜单名称:"
                        prop="title">
            <el-input clearable
                      v-model="form.title"
                      placeholder="请输入菜单名称" />
          </el-form-item>
        </el-col>
        <el-col v-bind="styleResponsive ? { sm: 12 } : { span: 12 }">
          <el-form-item label="菜单类型:">
            <el-radio-group v-model="form.menuType"
                            @change="onMenuTypeChange">
              <el-radio :label="0">目录</el-radio>
              <el-radio :label="1">菜单</el-radio>
              <el-radio :label="2">按钮</el-radio>
            </el-radio-group>
          </el-form-item>
          <el-form-item label="打开方式:">
            <el-radio-group v-model="form.openType"
                            :disabled="form.menuType === 0 || form.menuType === 2"
                            @change="onOpenTypeChange">
              <el-radio :label="0">组件</el-radio>
              <el-radio :label="1">内链</el-radio>
              <el-radio :label="2">外链</el-radio>
            </el-radio-group>
          </el-form-item>
        </el-col>
      </el-row>
      <div style="margin: 6px 0 28px 0">
        <el-divider />
      </div>
      <el-row :gutter="15">
        <el-col v-bind="styleResponsive ? { sm: 12 } : { span: 12 }">
          <el-form-item label="菜单图标:">
            <ele-icon-picker v-model="form.icon"
                             placeholder="请选择菜单图标"
                             :disabled="form.menuType === 2" />
          </el-form-item>
          <el-form-item name="path">
            <template v-slot:label>
              <el-tooltip v-if="form.openType === 2"
                          placement="top"
                          content="需要以`http://`、`https://`、`//`开头">
                <i class="el-icon-_question"></i>
              </el-tooltip>
              <span>
                {{ form.openType === 2 ? ' 外链地址:' : ' 路由地址:' }}
              </span>
            </template>
            <el-input clearable
                      v-model="form.path"
                      :disabled="form.menuType === 2"
                      :placeholder="pathPlaceholder" />
          </el-form-item>
          <el-form-item name="component">
            <template v-slot:label>
              <el-tooltip v-if="form.openType === 1"
                          placement="top"
                          content="需要以`http://`、`https://`、`//`开头">
                <i class="el-icon-_question"></i>
              </el-tooltip>
              <span>
                {{ form.openType === 1 ? ' 内链地址:' : ' 组件路径:' }}
              </span>
            </template>
            <el-input clearable
                      v-model="form.component"
                      :disabled="
                form.menuType === 0 ||
                form.menuType === 2 ||
                form.openType === 2
              "
                      :placeholder="componentPlaceholder" />
          </el-form-item>
        </el-col>
        <el-col v-bind="styleResponsive ? { sm: 12 } : { span: 12 }">
          <el-form-item label="权限标识:">
            <el-input clearable
                      v-model="form.authority"
                      placeholder="请输入权限标识"
                      :disabled="
                form.menuType === 0 ||
                (form.menuType === 1 && form.openType === 2)
              " />
          </el-form-item>
          <el-form-item label="排序号:"
                        prop="sortNumber">
            <el-input-number :min="0"
                             v-model="form.sortNumber"
                             placeholder="请输入排序号"
                             controls-position="right"
                             class="ele-fluid ele-text-left" />
          </el-form-item>
          <el-form-item label="是否展示:">
            <el-switch :active-value="0"
                       :inactive-value="1"
                       v-model="form.hide"
                       @change="changeFn"
                       :disabled="form.menuType === 2" />
            <el-tooltip placement="top"
                        content="选择不展示只注册路由不显示在侧边栏, 比如添加页面应该选择不展示">
              <i class="el-icon-_question"
                 style="vertical-align: middle; margin-left: 8px"></i>
            </el-tooltip>
          </el-form-item>
        </el-col>
      </el-row>
      <el-form-item label="路由元数据:"
                    prop="meta">
        <el-input :rows="4"
                  type="textarea"
                  :maxlength="200"
                  v-model="form.meta"
                  placeholder="请输入JSON格式的路由元数据" />
      </el-form-item>
    </el-form>
    <template v-slot:footer>
      <el-button @click="updateVisible(false)">取消</el-button>
      <el-button type="primary"
                 :loading="loading"
                 @click="save">
        保存
      </el-button>
    </template>
  </ele-modal>
</template>

<script>
import { EleIconPicker } from 'ele-admin';
import { addMenu, updateMenu } from '@/api/system/menu';

export default {
  components: { EleIconPicker },
  props: {
    // 弹窗是否打开
    visible: Boolean,
    // 修改回显的数据
    data: Object,
    // 上级菜单id
    parentId: Number,
    // 全部菜单数据
    menuList: Array
  },
  data () {
    const defaultForm = {
      menuId: null,
      parentId: '',
      title: '',
      menuType: 0,
      openType: 0,
      icon: '',
      path: '',
      component: '',
      authority: '',
      sortNumber: null,
      hide: 0,
      meta: ''
    };
    return {
      defaultForm,
      // 表单数据
      form: { ...defaultForm },
      // 表单验证规则
      rules: {
        title: [
          {
            required: true,
            message: '请输入菜单名称',
            trigger: 'blur'
          }
        ],
        sortNumber: [
          {
            required: true,
            message: '请输入排序号',
            trigger: 'blur'
          }
        ],
        meta: [
          {
            trigger: 'blur',
            validator: (_rule, value, callback) => {
              if (value) {
                const error = new Error('请输入正确的JSON格式');
                try {
                  const obj = JSON.parse(value);
                  if (typeof obj !== 'object' || obj === null) {
                    callback(error);
                    return;
                  }
                } catch (e) {
                  callback(error);
                  return;
                }
              }
              callback();
            }
          }
        ]
      },
      // 提交状态
      loading: false,
      // 是否是修改
      isUpdate: false
    };
  },
  computed: {
    pathPlaceholder () {
      return this.form.openType === 2 ? '请输入外链地址' : '请输入路由地址';
    },
    componentPlaceholder () {
      return this.form.openType === 1 ? '请输入内链地址' : '请输入组件路径';
    },
    // 是否开启响应式布局
    styleResponsive () {
      return this.$store.state.theme.styleResponsive;
    }
  },
  methods: {
    changeFn (e) {
      console.log(e)

    },
    /* 保存编辑 */
    save () {
      this.$refs.form.validate((valid) => {
        if (!valid) {
          return false;
        }
        this.loading = true;
        const data = {
          ...this.form,
          // menuType 对应的值与后端不一致在前端处理
          menuType: this.form.menuType === 2 ? 1 : 0,
          parentId: this.form.parentId || 0
        };
        const saveOrUpdate = this.isUpdate ? updateMenu : addMenu;
        saveOrUpdate(data)
          .then((msg) => {
            this.loading = false;
            this.$message.success(msg);
            this.updateVisible(false);
            this.$emit('done');
          })
          .catch((e) => {
            this.loading = false;
            this.$message.error(e.message);
          });
      });
    },
    /* 更新visible */
    updateVisible (value) {
      this.$emit('update:visible', value);
    },
    /* menuType选择改变 */
    onMenuTypeChange () {
      if (this.form.menuType === 0) {
        this.form.authority = null;
        this.form.openType = 0;
        this.form.component = null;
      } else if (this.form.menuType === 1) {
        if (this.form.openType === 2) {
          this.form.authority = null;
        }
      } else {
        this.form.openType = 0;
        this.form.icon = null;
        this.form.path = null;
        this.form.component = null;
        this.form.hide = 0;
      }
    },
    /* openType选择改变 */
    onOpenTypeChange () {
      if (this.form.openType === 2) {
        this.form.component = null;
        this.form.authority = null;
      }
    },
    /* 判断是否是外链 */
    isUrl (url) {
      return !!(
        url &&
        (url.startsWith('http://') ||
          url.startsWith('https://') ||
          url.startsWith('//'))
      );
    },
    /* 判断是否是目录 */
    isDirectory (d) {
      return !!d.children?.length && !d.component;
    }
  },
  watch: {
    visible (visible) {
      if (visible) {
        if (this.data) {
          const isInnerLink = this.isUrl(this.data.component) ? 1 : 0;
          // menuType 对应的值与后端不一致在前端处理
          const menuType =
            this.data.menuType === 1
              ? 2
              : this.isDirectory(this.data)
                ? 0
                : 1;
          this.$util.assignObject(this.form, {
            ...this.data,
            menuType,
            openType: this.isUrl(this.data.path) ? 2 : isInnerLink,
            parentId: this.data.parentId === 0 ? '' : this.data.parentId ?? ''
          });
          this.isUpdate = true;
        } else {
          this.form.parentId = this.parentId ?? '';
          this.isUpdate = false;
        }
      } else {
        this.$refs.form.clearValidate();
        this.form = { ...this.defaultForm };
      }
    }
  }
};
</script>
